DISCUSSION.

What determines the net foreign asset position of the residents of a particular country is an important question in international economics. Rene Stulz's paper seeks to answer it in a framework where two countries differ in their technology and asset preferences, but where they produce the same good. In the Ricardo example, Portugal and England trade in wine (or cloth) alone. This eliminates the role of the relative price of national outputs, the exchange rate and thus allows for the existence of an international riskless asset. It also severely reduces the international flavor of the model and is not convincingly justified. Note that complexity is hardly a reason since the author and others have successfully constructed related models with more than one good. Several other simplifications, convincingly justified in the paper, need no further elaboration. [ABSTRACT FROM AUTHOR]